The following information was provided by the State of California via email:

"Twining, Inc. notified RHB [California Radiation Health Branch] that at approximately 0545 [PDT on 10/17/2014], a Troxler 4640 moisture/density gauge, containing 10 mCi of Cs-137 and 50 mCi of Am-241, was stolen from an employee's vehicle while he was in his hotel room [located in Oakdale, CA]."

THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL

Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

"On November 4, 2014, at 1100 [CST], LS 2-2365 (HPCI Turbine Inlet Drain Pot Level Switch) was determined to be inoperable during planned testing. HPCI was inoperable (for the planned testing) at the time of discovery. The function of LS 2-2365 is to detect a failure of the HPCI steam trap (i.e., outlet of the HPCI inlet drain pot) by providing a control room alarm and opening an alternate drain path.

"HPCl is a single train safety system and this notification is being made in accordance with 10CFR50.72 (b)(3)(v)(D).